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-rw-r--r--compiler/rustc_mir_transform/src/const_prop.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/const_prop.rs b/compiler/rustc_mir_transform/src/const_prop.rs
index deec66bbaf3..b3a3a25ebe8 100644
--- a/compiler/rustc_mir_transform/src/const_prop.rs
+++ b/compiler/rustc_mir_transform/src/const_prop.rs
@@ -752,6 +752,7 @@ impl Visitor<'_> for CanConstProp {
             | NonMutatingUse(NonMutatingUseContext::Move)
             | NonMutatingUse(NonMutatingUseContext::Inspect)
             | NonMutatingUse(NonMutatingUseContext::Projection)
+            | NonMutatingUse(NonMutatingUseContext::PlaceMention)
             | NonUse(_) => {}
 
             // These could be propagated with a smarter analysis or just some careful thinking about